• they eat things that upset their stomachs
• constipation
• they gorge on things they should not eat
• some infections cause vomiting
• internal parasites
• intestinal obstruction
• some toxins cause vomiting
• organ based disease such as liver or kidney disease
• pain is a big cause of vomiting in the post-operative pig

1. Withhold food and water for 6 hours to let the stomach rest. Giving food or water right after vomiting will cause more vomiting. In pigs under 10 pounds, rub some Karo syrup or sugar water (1 tsp sugar in 1 cup warm water) on their gums every hours or so to prevent dips in blood sugar.
2. After 6 hours, offer a small amount of water – no more than ¼ cup. If the pig refuses to drink, it is still nauseated, so don’t force it. See your veterinarian. If it drinks, wait an hour to make sure it keeps it down, then offer ½ cup every hour for 6 hours. If no vomiting, return to free choice water.
3. If there is no vomiting 1 hour after the pig drinks water, offer a small meal of soft food (soaked pellets, rice cereal made with water - not milk, applesauce, mashed potatoes - that sort of thing). Wait 1 hour to see if vomiting occurs. If vomiting starts again, withhold food and water and see a veterinarian. If no vomiting, offer small soft meals, hourly.
4. Over a few days, increase the size of the meal but decrease the frequency, until you are on a normal schedule. Feed soft food for about a week and then return to normal diet, schedule and amounts

Reprinted with permission. ©Cathy Zolicani, Just Mini Pigs FB Group